Illustrated Companion to the Latin Dictionary/Trierarchus

This article incorporates text from a publication now in the public domain: Rich, Anthony (1849). The illustrated companion to the Latin dictionary, and Greek lexicon. p. vi. OCLC 894670115. https://archive.org/details/illustratedcompa00rich. 

TRIERAR'CHUS (τριήραρχος). Properly, the commander of a Greek trireme, whence the title was transferred into the Roman navy. Tac. Ann. xiv. 8. Id. Hist. ii. 16.